Surgery Commons^™

Incidence And Risk Factors Of Delirium In Surgical Intensive Care Unit, Muhammad Asghar Ali, Madiha Hashmi, Waqas Ahmed, Syed Amir Raza, Muhammad Faisal Khan, Bushra Salim

Department of Anaesthesia

Background: To evaluate the incidence and modifiable risk factors of delirium in surgical intensive care unit (SICU) of tertiary care hospital in a low-income and middle-income country.
Methods: We conducted a single cohort observational study in patients over 18 years of age who were admitted to the SICU for >24 hours in Aga Khan University Hospital from January to December 2016. Patients who had pre-existing cognitive dysfunction were excluded. Intensive Care Delirium Screening Checklist was used to assess delirium. Incidence of delirium was computed, and univariate and multivariable analyses were performed to observe the relationship between outcome and associated factors. …

Smartphone-Based Prediction Model For Postoperative Cardiac Surgery Outcomes Using Preoperative Gait And Posture Measures, Rahul Soangra, Thurmon Lockhart

Physical Therapy Faculty Articles and Research

Gait speed assessment increases the predictive value of mortality and morbidity following older adults’ cardiac surgery. The purpose of this study was to improve clinical assessment and prediction of mortality and morbidity among older patients undergoing cardiac surgery through the identification of the relationships between preoperative gait and postural stability characteristics utilizing a noninvasive-wearable mobile phone device and postoperative cardiac surgical outcomes. This research was a prospective study of ambulatory patients aged over 70 years undergoing non-emergent cardiac surgery. Sixteen older adults with cardiovascular disease (Age 76.1 ± 3.6 years) scheduled for cardiac surgery within the next 24 h were …

Outcome After Surgical Stabilization Of Rib Fractures Versus Nonoperative Treatment In Patients With Multiple Rib Fractures And Moderate To Severe Traumatic Brain Injury (Cwis-Tbi), Jonne T.H. Prins, Esther M. M. Van Lieshout, Francis Ali-Osman, Zachary M. Bauman, Eva-Corina Caragounis, Jeff Choi, D. Benjamin Christie Iii, Peter A. Cole, William B. Devoe, Andrew R. Doben, Evert A. Eriksson, Joseph D. Forrester, Douglas R. Fraser, Brendan Gontarz, Claire Hardman, Daniel G. Hyatt, Adam J. Kaye, Huan-Jang Ko, Kiara N. Leasia, Stuart Leon, Silvana F. Marasco, Allison G. Mcnickle, Timothy Nowack, Terri D. Ogunleye, Prakash Priya, Aaron P. Richman, Victoria Sschlanser, Gregory Semon, Ying-Hao Su, Michael H. J. Verhofstad, Julie Whitis, Fredric M. Pieracci, Mathieu M. E. Wijffels

Department of Surgery Faculty Publications

BACKGROUND

Outcomes after surgical stabilization of rib fractures (SSRF) have not been studied in patients with multiple rib fractures and traumatic brain injury (TBI). We hypothesized that SSRF, as compared with nonoperative management, is associated with favorable outcomes in patients with TBI.

METHODS

A multicenter, retrospective cohort study was performed in patients with rib fractures and TBI between January 2012 and July 2019. Patients who underwent SSRF were compared to those managed nonoperatively. The primary outcome was mechanical ventilation-free days. Secondary outcomes were intensive care unit length of stay and hospital length of stay, tracheostomy, occurrence of complications, neurologic outcome, …

Declining Intensive Care Unit Mortality Of Covid-19: A Multi-Center Study, Sohaib Roomi, Syed Omar Shah, Waqas Ullah, Shan Abedin, Karyn L. Butler, Chiers, Kelly, Benjamin A. Kohl, Erika J. Yoo, Matthew Vibbert, Jack Jallo

Department of Surgery Faculty Papers

Background: Coronavirus disease 2019 (COVID-19) mortality has waned significantly over time; however, factors contributing towards this reduction largely remain unidentified. The purpose of this study was to evaluate the trend in mortality at our large tertiary academic health system and factors contributing to this trend. Methods: This is a retrospective cohort study of intensive care unit (ICU) patients diagnosed with COVID-19 between March and August 2020 admitted across 14 hospitals in the Philadelphia area. Collected data included demographics, comorbidities, admission risk of mortality score, laboratory values, medical interventions, survival outcomes, hospital and ICU length of stay (LOS) and discharge disposition. …

Stereotactic Body Radiation Therapy (Sbrt) For Patients With Stage I Non-Small Cell Lung Cancer Is Applicable To More Tumors Than Sublobar Resection, Andrew Song, Nathaniel R. Evans Iii, Scott W. Cowan, Jenny Guo, Tingting Zhan, Bo Lu, Maria Werner-Wasik

Department of Radiation Oncology Faculty Papers

Background: Virtually all patients with medically inoperable stage I non-small cell lung cancer (NSCLC) can receive stereotactic body radiation therapy. However, the percentage of such patients in whom sublobar resection is technically feasible is unknown. This discrepancy can confound clinical trial eligibility and designs comparing stereotactic body radiation therapy vs. sublobar resection.

Methods: A total of 137 patients treated with stereotactic body radiation therapy for lung lesions (3/2013-11/2017) underwent retrospective review. Diagnostic CT chest and PET/CT images, stereotactic body radiation therapy dates, and demographic data were collected on 100 of 137 patients. Two experienced board-certified thoracic surgeons independently reviewed anonymized …

Covid-19 Pandemic And Breast Cancer Management: A Retrospective Observational Clinical Study From Pakistan, Lubna Mushtaque Vohra, Dua Jabeen, Narmeen Asif, Abdul Ahad

Section of General Surgery

Background: COVID-19 outbreak has adversely affected care of breast cancer patients world-wide. There is paucity of available data on cancer management in lower-middle income countries during this pandemic, we sought to determine the institutional approach towards management of breast cancer patients and the outcomes during COVID-19 pandemic at our institution.
Materials and methods: Clinicopathological and treatment record of cancer patients who presented to the Breast Clinic from 15th March to 31^st December 2020 was retrieved from the institutional database for this retrospective clinical observational study.
Results: A total of 292 patients were qualified for the analysis in which 206 …

Comparison Of Two Different Methods In The Removal Of Oil-Based Calcium Hydroxide From Root Canal System: A Triple-Blinded Randomised Clinical Trial, Momina Motiwala, Sheikh Bilal Badar, Rabia Ghafoor

Section of Dental-Oral Maxillofacial Surgery

Objective: To compare the effectiveness of rotary master apical file (RMAF) with ultrasonic activation of endodontic file (UAF) in the removal of silicon oil-based calcium hydroxide (SOBCH) from the canal.
Methods: Ethical review committee approval and informed consent was obtained. 60 cases with necrotic teeth in which silicon oil-based intracanal medicament (Metapex) was to be placed were randomised in one of the two groups using sealed envelopes containing assignment codes for medicament removal: RMAF and UAF group. After standard protocol of coronal access, cleaning and shaping, silicon oil-based SOBCH was placed using a Lentulo spiral. A periapical radiograph was taken …

Demonstrating Competence In Endoscopic Retrograde Cholangiopancratico Graphy (Ercp): Recently Credentialed Operator's Performance For Deep Biliary Cannulation Over 1 Year Period From A Tertiary Care Hospital In Pakistan, Om Parkash, Umar Bhatti, Hasnain Zafar, Saeed Hamid

Section of Gastroenterology

Objective: To measure the success rate of endoscopic retrograde cholangiopancreaticography biliary cannulation of a recently credentialed endoscopist at a tertiary hospital.
Methods: The clinical audit was conducted at the Aga Khan University Hospital. Karachi, and comprised data of all patients who underwent endoscopic retrograde cholangiopancreaticography under the care of a single operator during 2016. Data was retrospectively extracted from patient charts by an assistant blinded to the study. Data extracted included demographics, admission type, details and indication for the procedure, diagnosis, cannulation outcome, duct clearance, complications, follow-up surgical intervention, radiological imaging and mortality post-endoscopy. Data was analysed using SPSS 19. …

Persistent Post-Surgical Pain Following Breast Cancer Surgery: An Observational Study In A Tertiary Care Hospital, Ali Sarfraz Siddiqui, Sana Zeeshan, Aliya Ahmed, Shaista Khan

Department of Anaesthesia

Objective: To determine the frequency of persistent pain in patients after breast cancer surgery, and to assess the distribution and characteristics of pain in such patients.
Methods: The prospective observational single cohort study was conducted at the Department of Anaesthesiology and in the Breast Clinic of the Department of Surgery, Aga Khan University Hospital, Karachi, from August 2016 to January 2017, and comprised adult female patients with biopsy-proven carcinoma of breast who were scheduled for elective definitive breast cancer surgery. The patients were followed up for up to three months post-surgery and those with persistent pain were followed up for …

Relationship Of Natural Occlusal Plane With Different Anatomical Landmarks, Mehwish Khan, Syed Murtaza Raza Kazmi, Farhan Raza Khan, Sameer Quraeshi

Section of Dental-Oral Maxillofacial Surgery

Objective: To evaluate the parallelism of natural maxillary occlusal plane with inter-pupillary line and ala-tragus line, and to evaluate the anatomic relationship of natural mandibular occlusal plane with retromolar pad among dentate subjects.
Methods: The cross-sectional study was conducted from September 2017 to February 2018 at Fatima Jinnah Dental College, Karachi, and comprised front and profile photographs of subjects aged 20-28 years while holding the camper's plane against the maxillary occlusal plane. The photographs were imported in a software and an interpupillary line was drawn and the angle with Camper's plane was measured. On both profile pictures, lines were drawn …

Management Of Difficult Airway In A Pregnant Patient With Severely Reduced Mouth Opening, Faisal Shamim, Aly Bahadur, Dinaz Ghandhi, Anum Aijaz

Department of Anaesthesia

Pregnancy is associated with a wide variety of oral and dental changes ranging from gingivitis to odontogenic infections. If left untreated, severe dental abscess can progress to Ludwig's angina, which is a potentially lethal cellulitis that rapidly extends to the neck region and may lead to life-threatening upper airway obstruction. We report the case of a pregnant woman who presented with intense throbbing pain, trismus and severely reduced mouth opening due to dental abscess for the last one week. She required incision and drainage of abscess with extraction of third molar under general anaesthesia. There are some significant challenges to …

Proximal Subclavian Artery Injury Managed Without Performing Median Sternotomy: A Case Report, Zia Ur Rehman

Department of Surgery Docs

No abstract provided.

The Philadelphia Surgery Conference: A Value Analysis Of A Hands-On Surgical Skill-Building Event., Luke Dipasquale, Robert Libera, Chi Chi Do-Nguyen, Elizabeth Brehman, Vishwant Tatagari, Heather Waring, Denah Appelt, Arthur Sesso

PCOM Scholarly Works

Context: Limited opportunities exist to practice technical skills and to be exposed to various surgical specialties during preclinical medical education.

Objectives: To assess the value of workshop-based educational opportunities to medical students during preclinical training.

Methods: One hundred and 75 medical and physician assistant students from 10 medical schools attended the 2019 Philadelphia Surgery Conference. All students received STOP THE BLEED® bleeding control training and participated in four workshops, chosen from a list of 23, that demonstrated a variety of surgical skills. Data collection was accomplished using both a pre- and postconference survey to assess changes in confidence of personal …

Biomechanics Of Circumferential Cervical Fixation Using Posterior Facet Cages: A Cadaveric Study., Bernardo De Andrada Pereira, Joshua Pelta-Heller, Jennifer N Lehrman, Anna G U Sawa, Brian P Kelly

Department of Neurosurgery Faculty Papers

OBJECTIVE: Anterior cervical discectomy and fusion (ACDF) is a common procedure for the treatment of cervical disease. Circumferential procedures are options for multilevel pathology. Potential complications of multilevel anterior procedures are dysphagia and pseudarthrosis, whereas potential complications of posterior surgery include development of cervical kyphosis and postoperative chronic neck pain. The addition of posterior cervical cages (PCCs) to multilevel ACDF is a minimally invasive option to perform circumferential fusion. This study evaluated the biomechanical performance of 3-level circumferential fusion with PCCs as supplemental fixation to anteriorly placed allografts, with and without anterior plate fixation.

METHODS: Nondestructive flexibility tests (1.5 Nm) …

Hypoglossal Nerve Paraganglioma Depicting As Glomus Tumor Of Neck, Zaid Ahmed Shamsi, Fareed Ahmed Shaikh, Muhammad Wasif, Mustafa Belal Hafeez Chaudhry, Nadeem Ahmed Siddiqui, Ziad Sophie

Department of Surgery Docs

Introduction: Paraganglioma are infrequent neuroendocrine tumors that are most commonly found in the carotid body, ganglia of the vagus, jugular and tympanic nerve. Very rarely they can involve other cranial nerves outside the cranial cavity, we present one such case of hypoglossal nerve paraganglioma in neck.
Case report: A 48 years old male presented with 1-month history of right sided stroke and aphasia. Ultrasonography of neck revealed a highly vascular mass on the right side of the neck. CT angiogram confirmed a highly vascular mass arising above the carotid bifurcation. With the working diagnosis of Glomus tumor, he underwent right …

Outcome After Surgical Stabilization Of Rib Fractures Versus Nonoperative Treatment In Patients With Multiple Rib Fractures And Moderate To Severe Traumatic Brain Injury (Cwis-Tbi), Jonne T. H. Prins, Esther M. M. Van Lieshout, Francis Ali-Osman, Zachary M. Bauman, Eva-Corina Caragounis, Jeff Choi, D. Benjamin Christie Iii, Peter A. Cole, William B. Devoe, Julie Whitis

School of Medicine Publications

Background: Outcomes after surgical stabilization of rib fractures (SSRF) have not been studied in patients with multiple rib fractures and traumatic brain injury (TBI). We hypothesized that SSRF, as compared with nonoperative management, is associated with favorable outcomes in patients with TBI.

Methods: A multicenter, retrospective cohort study was performed in patients with rib fractures and TBI between January 2012 and July 2019. Patients who underwent SSRF were compared to those managed nonoperatively. The primary outcome was mechanical ventilation-free days. Secondary outcomes were intensive care unit length of stay and hospital length of stay, tracheostomy, occurrence of complications, neurologic outcome, …

In Vivo Transplantation Of Human Intestinal Organoids Enhances Select Tight Junction Gene Expression, Noah F Shroyer

Faculty, Staff and Student Publications

BACKGROUND: Short bowel syndrome is a potentially fatal condition with inadequate management options. Tissue-engineered small intestine (TESI) is a promising solution, but confirmation of TESI function will be crucial before human application. We sought to define intestinal epithelial barrier function in human intestinal organoid (HIO)-derived TESI.

MATERIALS AND METHODS: HIOs were generated in vitro from human embryonic stem cells. After 1 mo, HIOs were collected for analysis or transplanted into the kidney capsule of immunocompromised mice. Transplanted HIOs (tHIOs) were harvested for analysis at 4 or 8 wk. Reverse transcription quantitative polymerase chain reaction and immunofluorescent staining were performed for …

The Virtual Mock Oral Examination: A Multi-Institutional Study Of Resident And Faculty Receptiveness., Joseph F. Goodman, Prashant Saini, Alexander J. Straughan, Christopher D. Badger, Punam Thakkar, Philip E. Zapanta

Surgery Faculty Publications

No abstract provided.

Glioma Stem Cells As Immunotherapeutic Targets: Advancements And Challenges, Keenan Piper, Lisa Depledge, Michael Karsy, Charles Cobbs

Department of Neurosurgery Faculty Papers

Glioblastoma is the most common and lethal primary brain malignancy. Despite major investments in research into glioblastoma biology and drug development, treatment remains limited and survival has not substantially improved beyond 1–2 years. Cancer stem cells (CSC) or glioma stem cells (GSC) refer to a population of tumor originating cells capable of self-renewal and differentiation. While controversial and challenging to study, evidence suggests that GCSs may result in glioblastoma tumor recurrence and resistance to treatment. Multiple treatment strategies have been suggested at targeting GCSs, including immunotherapy, posttranscriptional regulation, modulation of the tumor microenvironment, and epigenetic modulation. In this review, we …

Analysis Of 114 Pedigrees Of Renal Stone Patients: A Retrospective Review, Syed Raziuddin Biyabani, Jamsheer Jehangir Talati, Daniya Umer, Zehra Kazmi, Hussam Uddin Soomro, Rubab Mansoor

Section of Urology

Background: Renal and ureteric stones (RS) can form due to genetic, metabolic, environmental, and diet-hydration related factors. Studies have shown that patients with family history (FH) of RS have higher likelihood of recurrence.
Materials and methods: We conducted a retrospective cross-sectional study on 114 pedigrees to investigate the impact of FH on recurrence of RS and examine patterns of inheritance. Results: Family history of renal stone disease was found in 42% of all patients. There was a significant increase of stone recurrence in RS patients with a positive FH (p=0.001). Seventy-one percent of patients with recurrent stones had at least …